Ko-Ken
Ko-Ken Professional Tools: Premium Industrial Hand Tools
Professional-Grade Ko-Ken Tools from Your Trusted Michigan-Based Distributor
Discover the Ko-Ken collection at Freer Tool & Supply—your destination for premium Japanese hand tools and sockets renowned for precision, durability, and professional performance. Our selection includes Ko-Ken’s high-quality impact sockets, ratchets, extensions, and specialty tools, all engineered for demanding automotive, industrial, and maintenance applications. Whether you’re a technician, mechanic, or industry professional, Ko-Ken tools deliver the reliability and accuracy you need for every job.
High Performance Tools of Convincing Quality.
Founded in 2012 by Jim Chase, Koken USA began sharing in the tool marketplace about an excellent product line of tools that was new to North America. He was so impressed by their quality and engineering that he claimed, "If we can just get them (Koken sockets) into the hands of the consumer, they will never buy anything else."
First with the introduction of Koken's broad line of standard sockets and tools, followed by their offering of custom sockets to meet specific customer requirements, Koken quickly developed a reputation for quality tools and outstanding customer service in North America.
Available Product Lines:
Professional Hand Tools:
Socket Sets
Impact Sockets
Specialty Tools
Industrial Solutions
Ko-ken 4325-E10(L140) 1/2 Sq. Dr. Socket TORX E10 Length 140mm
SKU: KK-4325-E10(L140)
MPN: 4325-E10(L140)
Ko-ken 4325-E11 1/2 Sq. Dr. Socket TORX E11 Length 77mm
SKU: KK-4325-E11
MPN: 4325-E11
Ko-ken 4325-E12 1/2 Sq. Dr. Socket TORX E12 Length 77mm
SKU: KK-4325-E12
MPN: 4325-E12
Ko-ken 4325-E12(L140) 1/2 Sq. Dr. Socket TORX E12 Length 140mm
SKU: KK-4325-E12(L140)
MPN: 4325-E12(L140)
Ko-ken 4325-E14 1/2 Sq. Dr. Socket TORX E14 Length 77mm
SKU: KK-4325-E14
MPN: 4325-E14
Ko-ken 4325-E14(L140) 1/2 Sq. Dr. Socket TORX E14 Length 140mm
SKU: KK-4325-E14(L140)
MPN: 4325-E14(L140)
Ko-ken 4325-E16 1/2 Sq. Dr. Socket TORX E16 Length 77mm
SKU: KK-4325-E16
MPN: 4325-E16
Ko-ken 4325-E18 1/2 Sq. Dr. Socket TORX E18 Length 77mm
SKU: KK-4325-E18
MPN: 4325-E18
Ko-ken 4325-E20 1/2 Sq. Dr. Socket TORX E20 Length 77mm
SKU: KK-4325-E20
MPN: 4325-E20
Ko-ken 4325-E22 1/2 Sq. Dr. Socket TORX E22 Length 77mm
SKU: KK-4325-E22
MPN: 4325-E22
Ko-ken 4325-E24 1/2 Sq. Dr. Socket TORX E24 Length 77mm
SKU: KK-4325-E24
MPN: 4325-E24
Ko-ken 4325-E8 1/2 Sq. Dr. Socket TORX E8 Length 77mm
SKU: KK-4325-E8
MPN: 4325-E8
Ko-ken 4325-E8(L140) 1/2 Sq. Dr. Socket TORX E8 Length 140mm
SKU: KK-4325-E8(L140)
MPN: 4325-E8(L140)
Ko-ken 4340C-16 1/2 Sq. Dr. Universal Spark Plug Socket 16mm 6 point Length 100mm Spring Clip
SKU: KK-4340C-16
MPN: 4340C-16
Ko-ken 4340C-20.8 1/2 Sq. Dr. Universal Spark Plug Socket 20.8mm 6 point Length 100mm Spring Clip
SKU: KK-4340C-20.8
MPN: 4340C-20.8
Ko-ken 4400A-1 1/2 Sq. Dr. Socket 1 6 point Length 42mm
SKU: KK-4400A-1
MPN: 4400A-1
Ko-ken 4400A-1.1/16 1/2 Sq. Dr. Socket 1.1/16 6 point Length 43mm
SKU: KK-4400A-1.1/16
MPN: 4400A-1.1/16
Ko-ken 4400A-1.1/2 1/2 Sq. Dr. Socket 1.1/2 6 point Length 47mm
SKU: KK-4400A-1.1/2
MPN: 4400A-1.1/2
Ko-ken 4400A-1.1/4 1/2 Sq. Dr. Socket 1.1/4 6 point Length 46mm
SKU: KK-4400A-1.1/4
MPN: 4400A-1.1/4
Ko-ken 4400A-1.1/8 1/2 Sq. Dr. Socket 1.1/8 6 point Length 43mm
SKU: KK-4400A-1.1/8
MPN: 4400A-1.1/8
Ko-ken 4400A-1.3/16 1/2 Sq. Dr. Socket 1.3/16 6 point Length 46mm
SKU: KK-4400A-1.3/16
MPN: 4400A-1.3/16
Ko-ken 4400A-1.3/8 1/2 Sq. Dr. Socket 1.3/8 6 point Length 47mm
SKU: KK-4400A-1.3/8
MPN: 4400A-1.3/8
Ko-ken 4400A-1.5/16 1/2 Sq. Dr. Socket 1.5/16 6 point Length 47mm
SKU: KK-4400A-1.5/16
MPN: 4400A-1.5/16
Ko-ken 4400A-1.7/16 1/2 Sq. Dr. Socket 1.7/16 6 point Length 47mm
SKU: KK-4400A-1.7/16
MPN: 4400A-1.7/16